```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>专业助理交互界面</title>
    <link rel="stylesheet" href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css">
    <link rel="stylesheet" href="https://cdn.staticfile.org/tailwindcss/2.2.19/tailwind.min.css">
    <link href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/mermaid@latest/dist/mermaid.min.js"></script>
    <style>
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #6e8efb 0%, #a777e3 100%);
        }
        .card-hover {
            transition: all 0.3s ease;
        }
        .card-hover:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .highlight-text {
            position: relative;
            z-index: 1;
        }
        .highlight-text:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 30%;
            background-color: rgba(110, 142, 251, 0.3);
            z-index: -1;
            transform: skewY(-2deg);
        }
        .fade-in {
            animation: fadeIn 0.5s ease-in;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
        }
        .drop-cap::first-letter {
            float: left;
            font-size: 3.5em;
            line-height: 0.7em;
            padding-right: 8px;
            margin-top: 4px;
            font-weight: 700;
            color: #6e8efb;
            font-family: 'Noto Serif SC', serif;
        }
    </style>
</head>
<body class="min-h-screen">
    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20 px-6 md:py-28">
        <div class="container mx-auto max-w-5xl">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0 md:pr-10">
                    <h1 class="text-4xl md:text-5xl font-bold mb-6 leading-tight">
                        <span class="highlight-text">您的专业知识助手</span>
                    </h1>
                    <p class="text-xl md:text-2xl mb-8 opacity-90">
                        提供清晰、直接的专家级解答与行动方案
                    </p>
                    <div class="flex space-x-4">
                        <button class="bg-white text-indigo-700 px-6 py-3 rounded-full font-semibold hover:bg-gray-100 transition duration-300 transform hover:scale-105 shadow-md">
                            立即体验 <i class="fas fa-arrow-right ml-2"></i>
                        </button>
                    </div>
                </div>
                <div class="md:w-1/2">
                    <div class="bg-white bg-opacity-20 p-6 rounded-xl backdrop-blur-sm border border-white border-opacity-20">
                        <div class="mermaid">
                            mindmap
                                root((专业助理))
                                    清晰解答
                                        "直接回答"
                                        "分步说明"
                                    多视角分析
                                        "替代方案"
                                        "潜在考量"
                                    行动方案
                                        "可执行步骤"
                                        "即时应用"
                                    专业领域
                                        "教师模式"
                                        "工程师模式"
                                        "医疗顾问"
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <main class="container mx-auto max-w-5xl px-6 py-16">
        <!-- Features Section -->
        <section class="mb-20">
            <h2 class="text-3xl font-bold mb-12 text-center text-gray-800">
                我们的<span class="text-indigo-600">核心能力</span>
            </h2>
            <div class="grid md:grid-cols-3 gap-8">
                <div class="bg-white p-8 rounded-xl shadow-md card-hover fade-in">
                    <div class="text-indigo-600 text-4xl mb-4">
                        <i class="fas fa-bullseye"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-4 text-gray-800">精准解答</h3>
                    <p class="text-gray-600">
                        针对您的问题提供清晰、直接的答案，避免含糊不清的表述，确保信息传达准确无误。
                    </p>
                </div>
                <div class="bg-white p-8 rounded-xl shadow-md card-hover fade-in" style="animation-delay: 0.1s;">
                    <div class="text-indigo-600 text-4xl mb-4">
                        <i class="fas fa-project-diagram"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-4 text-gray-800">结构化思维</h3>
                    <p class="text-gray-600">
                        通过分步说明展示思考过程，让您不仅知道"是什么"，更了解"为什么"和"怎么做"。
                    </p>
                </div>
                <div class="bg-white p-8 rounded-xl shadow-md card-hover fade-in" style="animation-delay: 0.2s;">
                    <div class="text-indigo-600 text-4xl mb-4">
                        <i class="fas fa-lightbulb"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-4 text-gray-800">多元视角</h3>
                    <p class="text-gray-600">
                        提供您可能没想到的替代方案和额外视角，拓宽思考维度，启发新的解决方案。
                    </p>
                </div>
            </div>
        </section>

        <!-- Process Section -->
        <section class="mb-20">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0 md:pr-10">
                    <h2 class="text-3xl font-bold mb-6 text-gray-800">
                        我们的<span class="text-indigo-600">工作流程</span>
                    </h2>
                    <div class="space-y-6">
                        <div class="flex items-start">
                            <div class="bg-indigo-100 text-indigo-600 rounded-full w-10 h-10 flex items-center justify-center mr-4 flex-shrink-0">
                                <span class="font-bold">1</span>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-1 text-gray-800">问题解析</h4>
                                <p class="text-gray-600">深入理解您的需求，明确问题核心与边界条件</p>
                            </div>
                        </div>
                        <div class="flex items-start">
                            <div class="bg-indigo-100 text-indigo-600 rounded-full w-10 h-10 flex items-center justify-center mr-4 flex-shrink-0">
                                <span class="font-bold">2</span>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-1 text-gray-800">知识调用</h4>
                                <p class="text-gray-600">调动专业知识库与推理能力，形成初步解答框架</p>
                            </div>
                        </div>
                        <div class="flex items-start">
                            <div class="bg-indigo-100 text-indigo-600 rounded-full w-10 h-10 flex items-center justify-center mr-4 flex-shrink-0">
                                <span class="font-bold">3</span>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-1 text-gray-800">方案完善</h4>
                                <p class="text-gray-600">补充替代方案与可能被忽略的视角，确保全面性</p>
                            </div>
                        </div>
                        <div class="flex items-start">
                            <div class="bg-indigo-100 text-indigo-600 rounded-full w-10 h-10 flex items-center justify-center mr-4 flex-shrink-0">
                                <span class="font-bold">4</span>
                            </div>
                            <div>
                                <h4 class="font-bold text-lg mb-1 text-gray-800">行动建议</h4>
                                <p class="text-gray-600">提炼可直接执行的摘要与行动计划，便于应用</p>
                            </div>
                        </div>
                    </div>
                </div>
                <div class="md:w-1/2">
                    <div class="bg-indigo-50 p-6 rounded-xl">
                        <div class="mermaid">
                            flowchart TD
                                A[接收问题] --> B{问题分析}
                                B -->|复杂问题| C[拆分子问题]
                                B -->|简单问题| D[直接解答]
                                C --> E[逐个解决子问题]
                                D --> F[构建解答框架]
                                E --> F
                                F --> G[验证解答完整性]
                                G --> H[补充替代方案]
                                H --> I[提炼行动建议]
                                I --> J[交付最终答案]
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Example Section -->
        <section class="mb-20">
            <h2 class="text-3xl font-bold mb-6 text-center text-gray-800">
                实际<span class="text-indigo-600">应用示例</span>
            </h2>
            
            <div class="bg-white rounded-xl shadow-md overflow-hidden mb-10">
                <div class="p-6 md:p-8">
                    <div class="flex items-center mb-4">
                        <div class="bg-indigo-600 text-white rounded-full w-8 h-8 flex items-center justify-center mr-3">
                            <i class="fas fa-user-tie text-sm"></i>
                        </div>
                        <span class="font-semibold text-gray-700">用户提问</span>
                    </div>
                    <div class="pl-11">
                        <p class="text-gray-800 text-lg font-medium">"如何提高团队的工作效率？"</p>
                    </div>
                </div>
                <div class="divider"></div>
                <div class="p-6 md:p-8 bg-indigo-50">
                    <div class="flex items-center mb-4">
                        <div class="bg-white text-indigo-600 rounded-full w-8 h-8 flex items-center justify-center mr-3 border border-indigo-200">
                            <i class="fas fa-robot text-sm"></i>
                        </div>
                        <span class="font-semibold text-gray-700">专家助理回答</span>
                    </div>
                    <div class="pl-11 space-y-6">
                        <div>
                            <h4 class="font-bold text-gray-800 mb-2 flex items-center">
                                <i class="fas fa-check-circle text-indigo-500 mr-2"></i> 直接解答
                            </h4>
                            <p class="text-gray-700 drop-cap">提高团队效率需要多管齐下：明确目标、优化流程、改善沟通、合理激励。具体可采取OKR目标管理法、每日站会、任务看板等工具，同时关注团队成员的工作满意度。</p>
                        </div>
                        
                        <div>
                            <h4 class="font-bold text-gray-800 mb-2 flex items-center">
                                <i class="fas fa-sitemap text-indigo-500 mr-2"></i> 分步方案
                            </h4>
                            <ol class="list-decimal list-inside text-gray-700 space-y-2">
                                <li class="pl-2">诊断当前效率瓶颈（流程/工具/人员）</li>
                                <li class="pl-2">设定清晰的SMART团队目标</li>
                                <li class="pl-2">引入敏捷工作方法（如Scrum看板）</li>
                                <li class="pl-2">优化沟通机制（减少无效会议）</li>
                                <li class="pl-2">建立持续反馈与改进机制</li>
                            </ol>
                        </div>
                        
                        <div>
                            <h4 class="font-bold text-gray-800 mb-2 flex items-center">
                                <i class="fas fa-lightbulb text-indigo-500 mr-2"></i> 替代方案
                            </h4>
                            <ul class="list-disc list-inside text-gray-700 space-y-2">
                                <li class="pl-2">考虑远程工作工具（如Slack+Zoom组合）</li>
                                <li class="pl-2">试行四天工作周（部分公司效果显著）</li>
                                <li class="pl-2">引入效率提升培训（时间管理/工具使用）</li>
                            </ul>
                        </div>
                        
                        <div>
                            <h4 class="font-bold text-gray-800 mb-2 flex items-center">
                                <i class="fas fa-rocket text-indigo-500 mr-2"></i> 行动建议
                            </h4>
                            <div class="bg-white p-4 rounded-lg border border-indigo-100">
                                <p class="text-gray-700 font-medium mb-2">本周可立即执行：</p>
                                <div class="flex items-start mb-2">
                                    <span class="bg-indigo-100 text-indigo-600 rounded-full w-5 h-5 flex items-center justify-center text-xs mr-2 mt-1 flex-shrink-0">1</span>
                                    <span>组织团队进行效率瓶颈头脑风暴</span>
                                </div>
                                <div class="flex items-start">
                                    <span class="bg-indigo-100 text-indigo-600 rounded-full w-5 h-5 flex items-center justify-center text-xs mr-2 mt-1 flex-shrink-0">2</span>
                                    <span>在下一个项目试行看板管理法</span>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Professional Modes -->
        <section>
            <h2 class="text-3xl font-bold mb-12 text-center text-gray-800">
                专业领域<span class="text-indigo-600">模式切换</span>
            </h2>
            <div class="grid md:grid-cols-2 lg:grid-cols-4 gap-6">
                <div class="bg-white p-6 rounded-xl shadow-md text-center card-hover group">
                    <div class="bg-blue-50 w-16 h-16 mx-auto rounded-full flex items-center justify-center mb-4 group-hover:bg-blue-100 transition-colors">
                        <i class="fas fa-chalkboard-teacher text-blue-600 text-2xl"></i>
                    </div>
                    <h3 class="text-lg font-bold mb-2 text-gray-800">教师模式</h3>
                    <p class="text-gray-600 text-sm">适合需要系统性知识讲解与学习指导的场景</p>
                </div>
                <div class="bg-white p-6 rounded-xl shadow-md text-center card-hover group">
                    <div class="bg-green-50 w-16 h-16 mx-auto rounded-full flex items-center justify-center mb-4 group-hover:bg-green-100 transition-colors">
                        <i class="fas fa-cogs text-green-600 text-2xl"></i>
                    </div>
                    <h3 class="text-lg font-bold mb-2 text-gray-800">工程师模式</h3>
                    <p class="text-gray-600 text-sm">提供技术方案评估与问题解决的系统方法</p>
                </div>
                <div class="bg-white p-6 rounded-xl shadow-md text-center card-hover group">
                    <div class="bg-purple-50 w-16 h-16 mx-auto rounded-full flex items-center justify-center mb-4 group-hover:bg-purple-100 transition-colors">
                        <i class="fas fa-user-md text-purple-600 text-2xl"></i>
                    </div>
                    <h3 class="text-lg font-bold mb-2 text-gray-800">医疗顾问</h3>
                    <p class="text-gray-600 text-sm">针对健康相关问题提供专业建议与注意事项</p>
                </div>
                <div class="bg-white p-6 rounded-xl shadow-md text-center card-hover group">
                    <div class="bg-yellow-50 w-16 h-16 mx-auto rounded-full flex items-center justify-center mb-4 group-hover:bg-yellow-100 transition-colors">
                        <i class="fas fa-chart-line text-yellow-600 text-2xl"></i>
                    </div>
                    <h3 class="text-lg font-bold mb-2 text-gray-800">商业顾问</h3>
                    <p class="text-gray-600 text-sm">提供市场分析、战略规划等商业决策支持</p>
                </div>
            </div>
        </section>
    </main>

    <script>
        mermaid.initialize({
            startOnLoad: true,
            theme: 'default',
            flowchart: {
                useMaxWidth: true,
                htmlLabels: true,
                curve: 'basis'
            },
            mindmap: {
                useMaxWidth: true
            }
        });
        
        // 简单的滚动动画效果
        document.addEventListener('DOMContentLoaded', function() {
            const fadeElements = document.querySelectorAll('.fade-in');
            
            const fadeInOnScroll = function() {
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                    if (elementTop < windowHeight - 100) {
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            };
            
            window.addEventListener('scroll', fadeInOnScroll);
            fadeInOnScroll(); // 初始检查
        });
    </script>
</body>
</html>
```